You pick up your phone and say “OK Google”... and then what? Your phone is listening. The microphone icon is pulsing. Google Now’s voice function has become surprisingly robust over the years. If Google Now doesn’t get your spoken commands right, you can correct it by saying “No, I said...” and trying the phrase again.

Always-listening voice commands are a big thing now.These features don’t send everything you say to a central server.They just analyze the sound nearby until they notice you’ve said the activation phrase, and then they kick into action.